"Today the ZFS on Linux project reached an important milestone with the official 0.6.1 release! Over two years of use by real users has convinced us ZoL is ready for wide scale deployment on everything from desktops to super computers."

Ahh, that is a lot more nuances 'statement'. Now you are saying certain engineers pushed for GPL incompatible licensing.

That's exactly what I said right from the bloody start: Though I guess this is the same grievances the engineers at Sun had and why they pushed for CDDL to be incompatible with GPL.
Ok, I'll concede that the statement does read a bit like I'm saying every engineer pushed for that. I could have been a little more clear on that. But I'd have thought the generalisation was implied.

And we'll never know how large that part was.

Oh totally. I was never trying to argue the reason for CDDLs licensing, just some of the feelings from some of the engineers. In actual fact, the end result of CDDL is irrelevant to the point I was making (though you could be forgiven for not realising that with the way how that statement was phrased).